Carriage for recording-machines.



C. E. W. GARDNER. CARRIAGE FOR- RECORDING MACHiNES. APPLICATION FILED MAY 25, 1915 1; 54,304. Patented Sept. 21, 1915.

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ATTORNEYS C. E. W. GARDNER.

CARRIAGE FOR RECORDING MACHlNES. APPLICATION HLED MAY 25. \915.

1,154,304, 7 PatentedSept. 21, 1915.

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WITNESSES 'ATToRNEYs ear are.

CLYDE GARDNER, 015 DETROIT, MICHIGAN, ASSIGNOB TO BURROUG'HS ADDING MACHINE COMPANY, OF DETROIT, MICHIGAN, A CORPCRATION OF MICHIGAN.

CARRIAGE FOR RECORDING-MACHINES.

Specification of Letters Patent.

Original application filed November 13, 1909, Serial No. 527,787. Divided and this application filed May 25-, 1915. Serial No. 30,337.

To all whom it may concern Be it known that I, CLYDE E. "W. GARDNER, a citizen of the United States, residing at -Detriot, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Carriages for cording-Machines, of which the following is a specification.

This application is a division of my application filed November 13, 1909, Serial No. 527,787, and relates to tabulating means.

The object is to provide an improved form of means of a simple and practical character in bearings upon which the said roller platen is journaled. The reference letter C designates a fixed bracket or rail in which the carriage is mounted to travel transversely of bracket.

are engaged with the machine. It will be understood that the side plates are connected by suitable tie-bars and cross rodsand that suitable devices are employed for guiding the paper and feeding it around the platen. As these constitute no part of my present invention I deem it unnecessary to include a detailed description of them.

The tabulating devices which embody my present invention comprise a pair of arms 31 located at opposite ends of the carriage bracket C and pivoted respectively (b pivot screws 33) to cars formed upon .ai-i projecting rearwardly from the said stationary A screw-threaded rod or shaft 30 extends between the upper ends of said arms 31, being suitably engaged with bosses on said arms as illustrated in Fig. 1. Nuts H this screw-threaded rod and adjustable along it by rotation thereon. These nuts are circumfere'ntially grooved at the middle and tapered or made frusto lnnical on each side of the groove,

as also bracket Chas a rearwardly extending portion which presents avertical face 3a to the nuts and cooperates with the fiat faces thereof to lock theni from turning. Springs 35 connect the arms 31 to the bracket C, as shown in Fig. 3, in such manner as to draw forward the tabulating structure comprising the two arms, the screw-threaded rod and the nuts. and thereby yieldingly maintain the locking relation between the nuts and the vertical face 34 of the stationary bracket, as clearly illustrated in Fig.

A rock shaft 36 extends from side to side of the carriage and is suitably journaled inthe side plates B thereof and also in central bearing lugs which project rearward from the base portion of the carriage. Between these lugs there is mounted upon and secured to the .said rock shaft 36 an arm or finger 32 which is designed to engage the circumferential grooves of the nuts H. At the right hand end the rock shaft 36 projects beyond the side plate of the carriage and there is secured to it'a lever 37 which serves as a handle being formed at its upper end with a finger piece; The forwardly pro- 8 jecting arm of this lever is connected by a spring'38 to'an upper portion of the adjacent side plate of the carriage. It will be seen that this spring exerts itself to force the arm or finger 32 downwardly into en- 9 place'in an automatic manner since, as before pointed out, the nuts are beveled. That I is to say, if, after the tabulating finger has been disengaged from one nut and finger pressure is not then maintained upon the 105' lever 37 while the carriage shifts to its new position, the said finger will ride into the groove of the next nut through coaction By pulling forward the take of "theistationary bracket C far enough'to ,pe' mit rotation of the nuts for adjusting with the bevel thereof, and if the carriage is being impelled by motive power there will bea retardation as it approaches the new position, due to the frictional engagement between the finger and the bevel of'the nut.

-Tlie pivotal mounting, of the tabulating structure which comprises the'arm 31, the screw-threaded rod and the nuts, provides for swinging the same rearwardly' away from the vertical nut-locking face 34:

"enigalongthe rod 30. v

will now be seen that the above de- M objects primarily stated, though of course it is susceptible of modification to a greater or less extent without necessarily departing from the splrit and scope of the invention.

Iclaim: -'f '1. The combination with a frame, of a carriage and platen movable thereon, a

threaded shaft parallel to said frame and movable with relation thereto, fiat sided nuts adjustable on said shaft and adapted 1 to serve as stops, and means tending normally' tohold said shaft against said frame wlrereby the nuts will be prevented from turning.

2. The combination with a frame, of a carriage and platen movable thereon, a threaded shaft arallel to said frame, arms carrying said siaftso pivoted as to bring said shaft against said frame,- springs tend ing to draw said shaft toward the frame,

and a plurality of nuts on said shaft having their opposite sides flattened whereby when in contact with the frame they cannot v so:

' Copies of this patentmay be obtained for be accidentally turned and displaced.

3. In a recording machine, 'the combination with a laterally movable paper carriage, of tabulator stop elements, the one comprising a screw-threaded rod or shaft and nuts thereon, and the other an abutment 'member to engage the nuts; one such elei. In a recording machine, the combinascribed construction is well adapted to ac-' complish the tion with -a laterally movable papercarriage, "of tabulator stop elements, the one.

comprising a screw-threaded rod or shaft and flat-sided'nuts thereon and the other an abutment member to engage the nuts; one suchelement being mounted on the carriage and the other on the fixed frame or support; together with means for locking the nuts I through engagement of their flat sides with a part on the shaft-supporting structure between which part and the nuts there is relative movement transverse the shaft for. un-

a locking purposes. k

5. In a recording machine, the combination with a laterally movable paper carriage, of tabulator'stop elements, the one comprising a screwrthrea ded rod or shaft and bevel-ended nuts thereon, and the other the nuts; one such element being mounted on the carriage and the other on the fixed frame or support; together with means for locking the nuts through their engagement with a part on the shaft-supporting structure betweenwhikth part and the nuts there is relative movement transverse the shaft for unlocking purposes, I

p 6. In a recording machine, the combination with a laterally movable paper carriage, of tabulatnr stop elements, the one comprising a screw-threaded rod or shaft and fiat-sided and bevel-ended nuts thereon, and the other a spring-held abutment member to engage the nuts; one such element being mounted on the carriage and the other on the fixed frame or support; together with a spring-held abutment member to engage ment transverse the shaft for unlocking' purposes. I

7. X tabulating mechanism for recording machinescomprising, in combination with the frame and carriage, a screw threaded shaft, nuts thereon having annular grooves and beveled end portions, and a stop mem; ber to engage the grooves and cooperate, with the beveled end-portions of the nuts, substantially as and for the purpose described.

, CLYDE E. W. GARDNER. Witnesses: f

R. S. NUELERT, J. A. BROPBY.

five cents each, by addressing the G ommissioner of Patents, WashingtomD. 0. 

